When installing over any existing ceiling material the surface should be dry stable even hard and free of any dust or debris.
How to put up polystyrene wall tiles.
A la maison styrofoam ceiling tiles installation.
Styrofoam ceiling tiles can be installed on ceilings and walls covered with drywall lime lime cement dry plaster chip board aerated concrete masonry silicates and popcorned or textured ceiling finishes.
Take down both tiles and cut the marked one along the pencil line.
The best case scenario will be that you just have to dab some polyfilla into small gaps or cracks.
Alternatively you can install a drop ceiling by first attaching thin 1 inch by 3 inch strips of wood at right angles to the room s joists.
Polystyrene ceiling tiles were also often put up to mask an already damaged ceiling.
If the ceiling s in slightly worse shape you might want to check out our guide to ceiling repair.
If your ceiling is in good shape you can install tiles by applying adhesive to them and pressing them against the ceiling starting in the center of the room and working outward.
Styrofoam ceiling tiles installation.
How to cover popcorn ceilings.